diff --git a/completions/bash/brew b/completions/bash/brew
index 526bb5c606..2ef69567a1 100644
--- a/completions/bash/brew
+++ b/completions/bash/brew
@@ -346,7 +346,6 @@ _brew_audit() {
   case "${cur}" in
     -*)
       __brewcomp "
-      --appcast
       --audit-debug
       --cask
       --debug
@@ -362,7 +361,6 @@ _brew_audit() {
       --help
       --installed
       --new
-      --no-appcast
       --no-signing
       --online
       --only
diff --git a/completions/fish/brew.fish b/completions/fish/brew.fish
index 5973e839bb..82f5637f28 100644
--- a/completions/fish/brew.fish
+++ b/completions/fish/brew.fish
@@ -328,7 +328,6 @@ __fish_brew_complete_arg 'analytics' -l verbose -d 'Make some output more verbos
 
 
 __fish_brew_complete_cmd 'audit' 'Check formula for Homebrew coding style violations'
-__fish_brew_complete_arg 'audit' -l appcast -d 'Audit the appcast'
 __fish_brew_complete_arg 'audit' -l audit-debug -d 'Enable debugging and profiling of audit methods'
 __fish_brew_complete_arg 'audit' -l cask -d 'Treat all named arguments as casks'
 __fish_brew_complete_arg 'audit' -l debug -d 'Display any debugging information'
@@ -344,7 +343,6 @@ __fish_brew_complete_arg 'audit' -l git -d 'Run additional, slower style checks
 __fish_brew_complete_arg 'audit' -l help -d 'Show this message'
 __fish_brew_complete_arg 'audit' -l installed -d 'Only check formulae and casks that are currently installed'
 __fish_brew_complete_arg 'audit' -l new -d 'Run various additional style checks to determine if a new formula or cask is eligible for Homebrew. This should be used when creating new formula and implies `--strict` and `--online`'
-__fish_brew_complete_arg 'audit' -l no-appcast -d 'Audit the appcast'
 __fish_brew_complete_arg 'audit' -l no-signing -d 'Audit for signed apps, which are required on ARM'
 __fish_brew_complete_arg 'audit' -l online -d 'Run additional, slower style checks that require a network connection'
 __fish_brew_complete_arg 'audit' -l only -d 'Specify a comma-separated method list to only run the methods named `audit_`method'
diff --git a/completions/zsh/_brew b/completions/zsh/_brew
index 93eef0ae3e..de508faa19 100644
--- a/completions/zsh/_brew
+++ b/completions/zsh/_brew
@@ -416,7 +416,6 @@ _brew_analytics() {
 # brew audit
 _brew_audit() {
   _arguments \
-    '--appcast[Audit the appcast]' \
     '--audit-debug[Enable debugging and profiling of audit methods]' \
     '--debug[Display any debugging information]' \
     '(--skip-style --only-cops --except-cops)--display-cop-names[Include the RuboCop cop name for each violation in the output]' \
@@ -430,7 +429,6 @@ _brew_audit() {
     '--help[Show this message]' \
     '(--all)--installed[Only check formulae and casks that are currently installed]' \
     '--new[Run various additional style checks to determine if a new formula or cask is eligible for Homebrew. This should be used when creating new formula and implies `--strict` and `--online`]' \
-    '--no-appcast[Audit the appcast]' \
     '--no-signing[Audit for signed apps, which are required on ARM]' \
     '--online[Run additional, slower style checks that require a network connection]' \
     '(--except --only-cops --except-cops)--only[Specify a comma-separated method list to only run the methods named `audit_`method]' \
diff --git a/docs/Manpage.md b/docs/Manpage.md
index d503a6e88d..d6924ee0cc 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -908,8 +908,6 @@ non-zero status if any errors are found.
   Evaluate all available formulae and casks, whether installed or not, to audit them. Implied if `HOMEBREW_EVAL_ALL` is set.
 * `--new`:
   Run various additional style checks to determine if a new formula or cask is eligible for Homebrew. This should be used when creating new formula and implies `--strict` and `--online`.
-* `--[no-]appcast`:
-  Audit the appcast.
 * `--[no-]signing`:
   Audit for signed apps, which are required on ARM
 * `--token-conflicts`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index 4c18c1819b..12c21ddb93 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1263,10 +1263,6 @@ Evaluate all available formulae and casks, whether installed or not, to audit th
 Run various additional style checks to determine if a new formula or cask is eligible for Homebrew\. This should be used when creating new formula and implies \fB\-\-strict\fR and \fB\-\-online\fR\.
 .
 .TP
-\fB\-\-[no\-]appcast\fR
-Audit the appcast\.
-.
-.TP
 \fB\-\-[no\-]signing\fR
 Audit for signed apps, which are required on ARM
 .